drm/vgem: Drop struct drm_vgem_gem_object

Commit 45d9c8dd ("drm/vgem: use shmem helpers") introduced shmem
helpers to vgem and with that, removed all uses of the struct
drm_vgem_gem_object. So, as the struct is no longer used, delete it.
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230222160617.171429-1-mcanal@igalia.com

drivers/gpu/drm/vgem/vgem_drv.h

@@ -39,17 +39,6 @@ struct vgem_file {
 	struct mutex fence_mutex;
 };
 
-#define to_vgem_bo(x) container_of(x, struct drm_vgem_gem_object, base)
-struct drm_vgem_gem_object {
-	struct drm_gem_object base;
-
-	struct page **pages;
-	unsigned int pages_pin_count;
-	struct mutex pages_lock;
-
-	struct sg_table *table;
-};
-
 int vgem_fence_open(struct vgem_file *file);
 int vgem_fence_attach_ioctl(struct drm_device *dev,
 			    void *data,